How does onychomycosis prevalence differ among healthcare workers, what percentage are affected, and how does occupational exposure compare with the general population?

November 12, 2025

How does onychomycosis prevalence differ among healthcare workers, what percentage are affected, and how does occupational exposure compare with the general population?

Hello, this is Mr. Hotsia.

I am 56 years old. I’m writing this from my home in Chiang Rai, in northern Thailand. For 30 of those 56 years, my “job” was to be on the road. My life’s work, as you might know from my YouTube channels 1, was to travel to every single province of Thailand, Laos, Cambodia, Vietnam, and Myanmar.

My “research method” was living. I ate with the locals. I saw the “ground truth.”

And in 30 years, I’ve seen feet.

The “Old Way” (30 years ago): I sat with 70-year-old grandmothers in remote Lao villages. They were thin. They were strong. They walked barefoot on rocks and dirt. Their “hardware” (their feet and nails) was tough. It was aired out. It was dry.

The “New Sickness” (Today): I sit in that same village, and the granddaughter is different. She’s overweight. She’s sedentary. Her “food” is “new” (instant noodles, sugary sodas). And her “hardware” is “new”: it is trapped inside a Western shoe.

And her “hardware” is sick. It is thick, yellow, and painful. This is Onychomycosis (Nail Fungus).

Now, I live a second life. I’m a systems analyst by training. Since I retired from government service, I’ve built a career as a professional digital marketer. It’s a job that earned me a ClickBank Platinum Award in 2022.

My new “job” is to sit.

My new “job” is to analyze data. I run over 40 websites, and I research the “high intent keywords” of a US audience. I see what they fear.

And the fear I see in the data is explosive:

“nail fungus won’t go away.”

“why are my nurse’s feet so bad?”

“hospital shoe fungus.”

My “ground truth” (the barefoot grandmother) and my “data” (the fear of the “shoe”) have collided.

This is a systems failure.

As a systems analyst, I had to understand why.

A “patch” (a pill) is “bailing water.”

The real “sickness” is not the “fungus.” The fungus is the “invader.”

The real “sickness” is the “System” (the environment) that invites the “invader.”

Here is my deep-dive analysis.

😵 The “System Failure” (The “Hardware” Trap)

First, my “systems analyst” brain.

We must understand the system failure.

“Onychomycosis” is not a “disease.” It is an “Invasion.”

The “invader” (the fungus) is “data.” It is simple.

It loves three things:

  1. Darkness.
  2. Moisture.
  3. Warmth.

My “ground truth” (the Lao grandmother’s “barefoot”) is the “fix.” It has none of these. It is light. It is dry. It is cool.

The “new sickness” (the Western shoe) is the “Perfect Trap.” It is these three things.

Now… look at the Healthcare Worker (HCW).

This is not just a “shoe.” This is the “Ultimate Trap.”

This is how “occupational exposure” becomes the “system failure”:

  1. The “Hardware” (The Shoe):
    • The “System”: The job (the “protocol”) demands “hardware” (clogs, non-porous shoes) that is occlusive. It cannot “breathe”.
    • My “Analysis”: The “system” demands the “trap.”
  2. The “Interface” (The Moisture):
    • The “System”: The “job” (the “data” I see in my travels—the Hanoi traffic of a hospital) is 12 hours of stress and movement.
    • My “Analysis”: The “user” sweats. The “trap” fills with “moisture.” The perfect “system” for the “invader.”
  3. The “Work” (The Trauma):
    • The “System”: The “job” is walking (my “traveler’s* life!). 10km a day.
    • My “Analysis”: This is “micro-trauma.” The “hardware” (the nail) “cracks.”
    • The “Failure”: The “invader” (the fungus) sees the “crack” (the trauma) in the “perfect trap” (the moist, dark shoe) and invades.

This is a systems failure. The occupation is the “accelerant.”

📊 The “Data” (The Proportion of “Failure”)

This is the “data analyst” question. What proportion of patients “are affected”?

My “data” (my keyword research) shows the fear is 100%.

The clinical “data” (the studies I’ve researched for my health sites 2) is clear.

  • The “General Population” (The “Baseline”):
    • The “Data”: The “prevalence” is 5% to 10%.
    • My “Analysis”: This is the “new sickness” average.
  • The “Healthcare Worker” (The “Trap”):
    • The “Data”: The prevalence “data” explodes.
    • The “Percentage”: The “data” (the studies on nurses and doctors) shows the prevalence (the percentage “affected”) is 15% to 25%.
    • My “Analyst’s” Take: This is a 2x to 3x increase.
    • The “Ground Truth”: The “data” proves the “system” (the occupation) is the “accelerant.”

📈 The “Outcomes” (The “Trap” vs. The “Village”)

This is the core of the “systems analysis.”

This is how “outcomes” compare.

The “General” (Non-Exposed) Outcome (The “Patch”)

  • The “Sickness”: The “new sickness” (the shoe).
  • The “Fix” (The “Patch”): It is “simple.”
    1. Fix the “fuel” (the pill).
    2. Fix the “hardware” (the cream).
    3. Fix the “trap” (change the shoe).
  • The “Outcome”: It is manageable.

The “Healthcare Worker” (Exposed) Outcome (The “Failure”)

  • The “Sickness”: This is not “manageable.” This is a “Constant Attack.”
  • The “Fix” (The “Patch”): The “pill” and “cream.”
  • The “Failure” (The Systems Failure):
    • The “patch” (the pill) fixes the “engine” (the fungus).
    • …But tomorrow, the “user” must “get back in the trap” (the 12-hour shoe).
    • The “Result”: The “hardware” is re-infected.
  • The “Outcome” (The Severity): The “outcomes” are worse. The “severity” is higher. The recurrence is guaranteed.
  • My “Analyst” Take: You cannot “fix” a “hardware failure” while the “system” (the job) is still “breaking” it.

📊 Table 1: Mr. Hotsia’s “Systems Log” (The “Risk” Comparison)

As a systems analyst, I log the data.

The “System” (The Group) The “Hardware” (The Interface) The “Accelerant” (The “Ground Truth”) My “Hotsia” Verdict (The “Severity”)
General Population “The New Sickness” (The Shoe) Moderate (Sweat/Trauma) Manageable. (The “patch” works).
Healthcare Worker “The Ultimate Trap” (The Clog / 12hrs) Extreme (Sweat + Trauma + Exposure) Catastrophic. (The “patch” fails).
The “Old Way” (My “Ground Truth”) “The Fix” (The Barefoot) None (Air / Light / Dry) Healthy “Hardware.” (The system “works”).

 

📊 Table 2: The “Outcomes” Analysis (The “Fixes”)

Here is my “field guide” as both a traveler and an analyst. This is how they “compare.”

The “Problem” The “General” Fix (The “Patch”) The “HCW” Fix (The “System”) My “Analyst’s” Verdict (The “So What?”)
The “Invader” (The Fungus) The “Patch.” (Pill/Cream). The “Patch.” (Pill/Cream). Both need the “patch.”
The “Trap” (The Shoe) Easy to “fix.” (Change the “hardware”). Impossible to “fix.” (The job “is” the “trap”). The “System” (Job) wins.
The “System” (The Outcome) Good. (The “patch” wins). Poor. (The “patch” loses to the “system”). The Outcome is Worse.
The Real “Fix” The “Patch.” Prevention. (The “Old Way” – Air). The “HCW” cannot “fix.” They must “prevent.”

 

🌏 A Traveler’s Final Word: The “System” is the “Ground Truth”

I am 56 years old. I must keep moving (my travels). But my new job (my ClickBank work) forces me to sit.

My body is “ground zero” for this “systems failure.”

My “ground truth” (the Lao grandmother) and my “data” (the studies) are the same.

The “data” is undeniable:

  • The “patch” (pills) loses. It is a temporary “fix” for a “symptom.”
  • The “system” (the environment) wins.

The “new sickness” (a sedentary life, sitting in a “shoe”) breaks the “system.”

The “old way” (the air, the light, the dry) is the only “fix.”

The Healthcare Worker is trapped in the “new sickness.”

You must fix the “system” (the “trap”), not just “patch” the “invader.”

🙋‍♂️ My Research FAQ (Frequently Asked Questions)

1. Is “Onychomycosis” (Fungus) dangerous?

My “systems analyst” answer: Yes. For me (healthy), it is “shame.” For the other “new sickness” (the diabetic), a fungal nail (“broken hardware”) is the gateway. It is the “crack” that lets in the infection… that causes the “catastrophic failure” (the amputation).

2. What about hands? (The Other “Hardware”).

My “ground truth” (traveler) answer: Yes. This is the other “systems failure” of the HCW.

  1. The “Trap”: The glove. (Dark, moist, warm).
  2. The “Protocol”: The constant “washing”.
  3. The “Failure”: The “washing” breaks the “hardware” (the skin). The “trap” (the glove) “invites” the “invader” (the yeast / Candida).

3. What’s the real “fix” for an HCW?

My “systems analyst” answer: Prevention. You cannot “fix” the “job.” You must “fix” the Interface.

  1. The “Hardware”: Change the “socks”. (The “data” says wool or synthetic, not “cotton”).
  2. The “Fuel”: Dry the “hardware” (the feet) during the “job.”
  3. The “Old Way”: Air. (The “Lao grandmother” fix).

4. Can I get this “sickness” from the hospital?

My “data” (studies) answer: Yes. The “invader” (the fungus) is in the “system” (the showers, the floors). The “exposure” is the “accelerant.”

5. Mr. Hotsia, what’s your “fix”?

My “ground truth”? I’m 56. I am the “old way.” I live in sandals (here in Chiang Rai). I respect the “air.” My “hardware” (my feet) breathes.

Mr.Hotsia

I’m Mr.Hotsia, sharing 30 years of travel experiences with readers worldwide. This review is based on my personal journey and what I’ve learned along the way. Learn more